21110 微小液滴中固体微粒子のレーザマニピュレーション(MEMS技術,OS.3 機械工学が支援する微細加工技術(半導体,MEMS,NEMS))

Abstract

The laser trapping of untransmissive solid particles are disscussed in this paper. Photon can generate the momentum to the untransmissive particles by diffraction and reflection on the surface of the particles. We tried laser trapping of untransmissive particles using an attractive force caused by the diffraction and radiation force caused by reflection. The laser trapping system contains CW YAG laser. which has 1.064 μm in wave length and an optical microscope. The motions of particles were monitored by a CCD camera on the top of the microscope and recorded by PC connected to a CCD camera.